Fix cancelling happy eyeballs when IPv6 resolution is pending

Test on PHP 8.3 and update test environment

Use Promise v3 template types

Update test suite to collect all garbage cycles

Update test suite to avoid unhandled promise rejections

Include timeout logic to avoid dependency on reactphp/promise-timer

Work around broken composer install for legacy PHP on Windows

Improve errno detection for failed connections without ext-sockets

Update test environment to report failed assertions

Improve test suite, clean up leftover `.sock` files

Update test suite to future-proof base images

Forward compatibility with react/promise 3

Test on PHP 8.2

With PHP 8.2 coming out later this year, we should be reading for it's release to ensure all out...

Update test suite to use new reactphp/async package instead of clue/reactphp-block

Fix failing test suite by updating macOS

chore(docs): remove leading dollar sign

Avoid unneeded syscall on socket close

Improve error reporting when custom error handler is used

Fix legacy HHVM build by downgrading Composer

Fix optional test for `ENETUNREACH` error condition

Add badge to show number of project installations

Fix invalid references in exception stack trace

Use default loop in testsuite and close server and connection leftovers

Skip legacy TLS 1.0 tests if disabled by system

Support PHP 8.1

Improve test suite to skip FD test when hitting memory limit

Avoid dependency on `ext-filter`

Skip unsupported tests for HHVM

Improve error messages for failed TCP/IP connections with errno/errstr

Update `Connector` signature to take `$context` as first argument

Add new `SocketServer` and deprecate `Server` to avoid class name collisions